It's definitely not uniform. Individual shipping, railroad, and trucking companies are prioritising rarer/more expensive containers to areas with driver shortages. Just-in-time logistical practices mean individual supply chains are hit at random with cascading effects when they're components for something else. Raw resources like lumber are fucked which causes construction shortages. Here it's similar to what you're experiencing, also with a lot of impact to the meat supply and random grocery/tradecraft/appliance items. We're also along a major urban corridor with local freight rail so it's probably cheaper to keep this area supplied than one where you're trucking things an hour away from the rail-yards.

We're also dealing with a limited version of them. As far as I know the root cause of the current shockwaves was Chinese manufacturing shutting down during their first COVID outbreaks. That wasn't long. They've already shut down one major port this week that ships a lot of components and consumer goods due to an outbreak and we've got much more infectious varieties that could escape control efforts. If things go offline there for a longer stretch then shortages will be very visible even before the panic buying.